MBBS Insider Buying — Recent SEC Form 4 Activity
Track insider buying activity for Marathon Bancorp, Inc. /MD/ ($MBBS). See every SEC Form 4 purchase by CEOs, CFOs, directors, and 10% owners over the last 90 days — sourced directly from EDGAR.
In the past 90 days, 4 insiders at Marathon Bancorp, Inc. /MD/ (MBBS) made open-market purchases totaling $71,557.02. The most recent transaction was on 2026-06-11.
Recent Insider Purchases at Marathon Bancorp, Inc. /MD/
| Date | Insider | Shares | Value |
|---|---|---|---|
| 2026-06-11 | Cornish Terry | 219 | $3,230.25 |
| 2026-06-11 | Cornish Terry | 693 | $10,048.50 |
| 2026-06-11 | Knopf Michelle | 54 | $769.01 |
| 2026-06-11 | Knopf Michelle | 164 | $2,419.00 |
| 2026-06-11 | Knopf Michelle | 519 | $7,525.50 |
| 2026-06-11 | Zillges Nicholas W | 170 | $2,507.50 |
| 2026-06-11 | Zillges Nicholas W | 55 | $783.26 |
| 2026-06-11 | Zillges Nicholas W | 537 | $7,786.50 |
| 2026-06-11 | Spatz Nora | 602 | $8,879.50 |
| 2026-06-11 | Spatz Nora | 1,904 | $27,608.00 |
Top Insiders Buying MBBS
- Spatz NoraCAO$36,487.502 purchases
- $13,278.752 purchases
- $11,077.263 purchases
- $10,713.513 purchases
Frequently Asked — MBBS Insider Buying
What is MBBS insider buying?
$MBBS insider buying refers to open-market purchases of Marathon Bancorp, Inc. /MD/ stock by corporate insiders — officers, directors, and shareholders owning more than 10% of the company. Every purchase is disclosed to the SEC on Form 4 within two business days and is shown on this page.
Why does MBBS insider activity matter?
Insiders have the best view into Marathon Bancorp, Inc. /MD/'s operations. When they buy their own stock with personal money — rather than selling option grants — it signals conviction. Clusters of insider buying (two or more insiders purchasing within 14 days) have historically preceded above-market returns.
Where does this MBBS insider data come from?
Every transaction on this page is sourced directly from SEC EDGAR Form 4 filings. InsiderAct ingests these filings in near real time and filters for open-market purchases (transaction code P).
How do I get alerts when MBBS insiders buy?
Add $MBBS to your InsiderAct watchlist and enable email alerts. You'll be notified when a new Form 4 purchase is filed — usually within hours of the transaction.
What is a "cluster buy" signal?
InsiderAct flags a cluster buy when two or more independent insiders at the same company buy on the open market within a 14-day window. Cluster buys are the highest-conviction insider signal we track.
Related Insider Activity
Other stocks with recent insider buying on SEC Form 4
Want alerts when MBBS insiders buy?
Add $MBBS to your watchlist and get notified the moment a new Form 4 is filed.
Data sourced from SEC Form 4 filings via EDGAR. Read more: What is SEC Form 4?